| 摘要 |
A pressure contained car cannon for the launching and/or flipping of vehicles, or other large-scale props, for use in motion picture action sequences. The device consists of a car canon having a barrel, a cannon foot and a piston. By way of pneumatic pressure, force is achieved by transferring energy from the piston to the cannon foot, resulting in a push force which expels the cannon foot from the cannon barrel, launching the vehicle on its desired trajectory while keeping most all vapor and smoke contained within the barrel itself. |
| 主权项 |
1. A method for achieving a cinematic special effect of overturning a vehicle or large prop comprising:
attaching a cannon into a vehicle or large prop; the cannon comprising a piston, a barrel, and a cannon foot; the piston placed in the top of the barrel; the cannon foot comprising a rod, the top of the rod pressed against the piston; and the bottom of the rod attached to the foot; a tank of pressurized gas located inside of the vehicle, or large prop, with a hose attached from the tank to the cannon above the piston; means to propel the compressed gas against the piston, pushing the piston down the barrel against the rod of the cannon foot, forcing the cannon foot out of the barrel against the ground, causing the cannon foot to push one side of the vehicle, or prop, with enough force to cause the vehicle or prop to flip over, depending upon the amount of pressure from the propelled gas. |
